/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.iotdb.tsfile.read.filter.operator;

import org.apache.iotdb.tsfile.file.metadata.enums.TSDataType;
import org.apache.iotdb.tsfile.file.metadata.statistics.Statistics;
import org.apache.iotdb.tsfile.read.filter.basic.Filter;
import org.apache.iotdb.tsfile.read.filter.factory.FilterSerializeId;
import org.apache.iotdb.tsfile.read.filter.factory.FilterType;
import org.apache.iotdb.tsfile.utils.ReadWriteIOUtils;

import java.io.DataOutputStream;
import java.io.IOException;
import java.nio.ByteBuffer;

public class Between<T extends Comparable<T>> implements Filter {

    private static final long serialVersionUID = -537390606419370764L;

    protected T value1;

    protected T value2;

    protected boolean not;

    protected FilterType filterType;

    public Between() {
    }

    public Between(T value1, T value2, FilterType filterType, boolean not) {
        this.value1 = value1;
        this.value2 = value2;
        this.filterType = filterType;
        this.not = not;
    }

    @Override
    public void serialize(DataOutputStream outputStream) {
        try {
            outputStream.write(getSerializeId().ordinal());
            outputStream.write(filterType.ordinal());
            ReadWriteIOUtils.write(not, outputStream);
            ReadWriteIOUtils.writeObject(value1, outputStream);
            ReadWriteIOUtils.writeObject(value2, outputStream);
        } catch (IOException ignored) {
            // ignored
        }
    }

    @Override
    public void deserialize(ByteBuffer buffer) {
        filterType = FilterType.values()[buffer.get()];
        not = ReadWriteIOUtils.readBool(buffer);
        value1 = (T) ReadWriteIOUtils.readObject(buffer);
        value2 = (T) ReadWriteIOUtils.readObject(buffer);
    }

    @Override
    public FilterSerializeId getSerializeId() {
        return FilterSerializeId.BETWEEN;
    }

    @Override
    public boolean satisfy(Statistics statistics) {
        if (filterType == FilterType.TIME_FILTER) {
            long time1 = (Long) value1, time2 = (Long) value2;
            if (not) {
                return statistics.getStartTime() < time1 || statistics.getEndTime() > time2;
            } else {
                return statistics.getEndTime() >= time1 || statistics.getStartTime() <= time2;
            }
        } else {
            if (statistics.getType() == TSDataType.TEXT || statistics.getType() == TSDataType.BOOLEAN) {
                return true;
            }
            if (not) {
                return ((T) statistics.getMinValue()).compareTo(value1) < 0
                        || ((T) statistics.getMaxValue()).compareTo(value2) > 0;
            } else {
                return ((T) statistics.getMaxValue()).compareTo(value1) >= 0
                        && ((T) statistics.getMinValue()).compareTo(value2) <= 0;
            }
        }
    }

    @Override
    public boolean satisfy(long time, Object value) {
        Object v = filterType == FilterType.TIME_FILTER ? time : value;
        return (value1.compareTo((T) v) <= 0 && ((T) v).compareTo(value2) <= 0) ^ not;
    }

    @Override
    public boolean satisfyStartEndTime(long startTime, long endTime) {
        if (filterType == FilterType.TIME_FILTER) {
            long time1 = (Long) value1, time2 = (Long) value2;
            if (not) {
                return startTime < time1 || endTime > time2;
            } else {
                return endTime >= time1 && startTime <= time2;
            }
        } else {
            return true;
        }
    }

    @Override
    public boolean containStartEndTime(long startTime, long endTime) {
        if (filterType == FilterType.TIME_FILTER) {
            long time1 = (Long) value1, time2 = (Long) value2;
            if (not) {
                return endTime < time1 || startTime > time2;
            } else {
                return startTime >= time1 && endTime <= time2;
            }
        } else {
            return true;
        }
    }

    @Override
    public Filter copy() {
        return new Between(value1, value2, filterType, not);
    }
}
